LIF Protein (AA 23-202) (His tag,AVI tag,Biotin)
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- Target See all LIF Proteins
- LIF (Leukemia Inhibitory Factor (LIF))
- Protein Type
- Recombinant
- Protein Characteristics
- AA 23-202
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Origin
- Human
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Source
- HEK-293 Cells
- Purification tag / Conjugate
- This LIF protein is labelled with His tag,AVI tag,Biotin.
- Sequence
- AA 23-202
- Specificity
- Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
- Purity
- >90 % as determined by SDS-PAGE.
- Endotoxin Level
- Less than 1.0 EU per μg by the LAL method.
- Top Product
- Discover our top product LIF Protein
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- Comment
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Ready-to-use AvitagTM biotinylated protein:
The product is exclusively produced using the AvitagTM technology. Briefly, a unique 15 amino acid peptide, the Avi tag, is introduced into the recombinant protein during expression vector construction. The single lysine residue in the Avi tag is enzymatically biotinylated by the E. Coli biotin ligase BirA.
This single-point enzymatic labeling technique brings many advantages for commonly used binding assays. The biotinylation happens on the lysine residue of Avi tag, and therefore does NOT interfere with the target protein's natural binding activities. In addition, when immobilized on an avidin-coated surface, the protein orientation is uniform because the position of the Avi tag in the protein is precisely controlled. - Restrictions
- For Research Use only
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- Format
- Lyophilized
- Buffer
- PBS, pH 7.4
- Handling Advice
- Please avoid repeated freeze-thaw cycles.
- Storage
- -20 °C
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- Target
- LIF (Leukemia Inhibitory Factor (LIF))
- Alternative Name
- LIF (LIF Products)
- Synonyms
- CDF Protein, DIA Protein, HILDA Protein, MLPLI Protein, LIF, interleukin 6 family cytokine Protein, leukemia inhibitory factor Protein, LIF Protein, Lif Protein
- Background
- Leukemia inhibitory factor, or LIF, an interleukin 6 class cytokine, is a protein in cells that affects cell growth and development.Leukemia Inhibitory Factor has several functions such as cholinergic neuron differentiation, control of stem cell pluripotency, bone & fat metabolism, mitogenesis of factor dependent cell lines & promotion of megakaryocyte production in vivo. Removal of LIF pushes stem cells toward differentiation, but they retain their proliferative potential or pluripotency. Therefore LIF is used in mouse embryonic stem cell culture. It is necessary to maintain the stem cells in an undifferentiated state, however genetic manipulation of embryonic stem cells allows for LIF independent growth, notably overexpression of the gene Nanog. LIF is not required for culture of human embryonic stem cells.
- Molecular Weight
- 23.4 kDa
- NCBI Accession
- NP_002300
- Pathways
- JAK-STAT Signaling, Positive Regulation of Peptide Hormone Secretion, Negative Regulation of Hormone Secretion, Stem Cell Maintenance, Growth Factor Binding
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